The story

Seven years after devastating terrorist attacks brought death to New York's World Trade Centers, the Pentagon and a Pennsylvania field, the first permanent, on-site memorial is being dedicated Thursday at the Pentagon.

Official memorials at the other two sites are still years away.

In New York, construction has begun on a complex that will include a memorial with a tree-shaded plaza and reflecting pools, and an underground museum with an entry pavilion.

It's part of a bigger project, including new office towers and a transportation hub, whose target date has been repeatedly delayed.

The goal is to open the memorial to the public by the 10th anniversary of the attacks, in 2011, and the museum by the year after. Read full article »